Microstructures of two-phase Ti-Cr alloys containing the TiCr2 Laves phase intermetallic

被引：41

作者：

Chen, KC

Allen, SM

Livingston, JD

机构：

[1] Dept. of Mat. Sci. and Engineering, Massachusetts Inst. of Technology, Cambridge

来源：

JOURNAL OF MATERIALS RESEARCH | 1997年 / 12卷 / 06期

基金：

美国能源部;

关键词：

D O I：

10.1557/JMR.1997.0203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microstructures of two-phase Ti-Cr alloys (Ti-rich bcc + TiCr2 and Cr-rich bcc + TiCr2) are analyzed. A variety of TiCr2 precipitate morphologies is encountered with different nominal alloy compositions and annealing temperatures. Lattice constants and crystal structures are determined by x-ray diffraction (XRD) and transmission electron microscopy (TEM). Orientation relationships between the beta bcc solid solution and C15 TiCr2 Laves phase are understood in terms of geometrical packing, and are consistent with a Laves phase growth mechanism involving twinning.

引用

页码：1472 / 1480

页数：9

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